Mitsubishi Q01CPU User Manual

12
TROUBLESHOOTING
12.3 Error Code List
12.3.11 Error codes returned to request source during communication with CPU module
12 - 239
9
EMC AND LOW VOLTAGE DIRECTIVES
10
LOADING AND INSTALLATION
11
MAINTENANCE AND INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
Table12.12 Error code
Error code
(Hexadecimal)
Error item Error details Corrective action
421D
H
Online module
change-related
error
System switching occurs during the online
module change.
Connect GX Developer to the new control system and
check the status of the online module change. According
to the status of online module change, take procedures
for it.
421E
H
The information of the online module change
cannot be sent to the standby system. When
the system switching occurs during the online
module change, the online module change
may not be continued.
The tracking cable may be faulty or the standby system
may have an error.
• Check the mounting status of the tracking cable or
replace the tracking cable.
• Check the status of the standby system. When a stop
error was detected by the standby system, perform
troubleshooting.
421F
H
The module mounted on the extension base
unit cannot be replaced online when the
connection destination is set to the standby
system in the separate mode.
• Set the connection destination of a programming tool
to the present control system.
• Perform the online module change to the module
mounted on the extension base unit again.
4240
H
Redundant
system-related
error
Any of the following unsupported operations
was executed for the standby system.
• Operation mode change
• System switching
• Memory copy from control system to
standby system
Execute the operation again after changing the transfer
setup to the control system.
4241
H
Communication cannot be made since the
standby system has been powered off or reset
or is in a user watchdog timer error or CPU
module hardware fault status.
Request communication after powering on the standby
system or setting its Reset switch to the neutral position.
4242
H
Communication with the standby system
cannot be made since the tracking cable is
faulty or disconnected.
Cannot be executed since the tracking cable is
disconnected or faulty. Execute again after checking the
tracking cable for disconnection or changing it for a
normal one.
4243
H
The command cannot be executed since the
standby system is in stop error.
Execute again after removing the stop error of the
standby system.
4244
H
The command cannot be executed since the
operation status differs from that of the
standby system.
Execute again after placing the standby system in the
same operation status (RUN/STOP) as the control
system.
4245
H
Other system CPU module status error
Check that the other system CPU module has normally
started up and that the tracking cable is connected.
4246
H
The command cannot be executed since
operation mode (separate/backup) change or
system (control/standby system) switching is
being executed.
Execute again after the operation mode change or
system switching being executed is completed.
4247
H
Memory copy from control system to standby
system is already being executed.
Execute again after memory copy from control system to
standby system is completed.
Check the following and take corrective action.
• Is SM1596 of the control system or standby system
ON?
(ON: Memory copy being executed)
Execute again after SM1596 has turned OFF since it is
turned OFF by the system on completion of memory
copy.
• Is SM1597 of the control system ON?
(ON: Memory copy completed)
Execute again after turning OFF SM1597 of the control
system.

Mitsubishi Q01CPU Specifications

General

Brand	Mitsubishi
Model	Q01CPU
Category	Controller
Language	English